Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
  • B25C1/00—Hand-held nailing tools; Nail feeding devices
  • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L29/00—Joints with fluid cut-off means
  • F16L29/02—Joints with fluid cut-off means with a cut-off device in one of the two pipe ends, the cut-off device being automatically opened when the coupling is applied
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C13/00—Details of vessels or of the filling or discharging of vessels
  • F17C13/04—Arrangement or mounting of valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
  • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
  • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
  • F17C2205/0323—Valves
  • F17C2205/0335—Check-valves or non-return valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
  • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
  • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
  • F17C2205/0382—Constructional details of valves, regulators

Definitions

• the invention relates to the means for connecting, on the one hand, a nozzle for ejecting a valve of a compressed gas cartridge intended to supply compressed gas to a compressed gas fixing device and, on the other hand part, from a male intake nozzle of a device for admitting compressed gas into the appliance, the connection means comprising sealing means intended to ensure the seal between the two nozzles.
• fixing device is meant a device for driving fasteners of the nail type.
• connection means in operation, the ends of two male end pieces are abutted one against the other in a joint plane, a sealing sleeve extending on either side of this plane. joint and surrounding the ends of the two male end pieces, with, in the sleeve, an internal groove for retaining leakage gas, extending between portions of cylindrical sealing surface. These portions of sealing surface may not be sufficient. Furthermore, the abutment, by the ends of their ends, of the cartridge and of the intake solenoid valve, can be the cause of some wear of the solenoid valve.
• the present invention aims to eliminate the drawbacks of the prior art.
• the invention relates to a compressed gas cartridge, intended to supply gas to a compressed gas fixing device, comprising a valve with an ejection nozzle mounted movable in translation between a rest position and a position of gas ejection, characterized in that the valve ejection nozzle is a female nozzle arranged to receive a male nozzle from a gas inlet device of the device and push the valve back into the ejection position and to thus form an integrated sealing connection between the two end pieces.
• sealing can therefore be ensured not only by a portion of cylindrical surface, but also, if in operation the male end piece abuts against the female end of the ejection valve, by an annular sealing surface portion extending substantially perpendicular to the axis of the cylindrical sealing surface portion.
• the interior receiving wall of the female end of the cartridge has an annular sealing lip.
• FIG. 1 is an exploded sectional view of a compressed gas cartridge and a gas inlet solenoid valve of a compressed gas fixing device
• FIG. 2 is a sectional view of the cartridge and the solenoid valve with their nozzles inserted one into the other;
• FIG. 3 is a view similar to that of FIG. 2, but in the state of transfer of gas from the cartridge into the device and
• FIG. 4 is an overview of the solenoid valve mounted on the cartridge.
• a compressed gas cartridge 1 is mounted on the compressed gas inlet solenoid valve 2 of a device for driving fasteners, of the nail type, by means of a sealing fitting 3.
• the inlet solenoid valve 2 comprises a male inlet nozzle 4 extending axially - along the axis 8 - projecting from the bottom 5 of a bowl 6, formed by an annular skirt 7 for receiving an ejection foot 14 from the cartridge 1.
• the end 9 of the inlet nozzle 4 of the solenoid valve is set back relative to the annular edge 10 of the skirt 7.
• the compressed gas cartridge .1 has a cylindrical envelope 11 ending in a thick annular bead 12 forming a bowl 13 in the center of which the ejection foot 14 projects, however set back with respect to the annular edge 15 of the bead 12.
• An ejection endpiece 16 is mounted in the ejection foot 14, sliding against the action of a return spring 17.
• the endpiece 16 comprises an external tubular part 18, projecting from the ejection foot 14 and of the bowl 13, extended by a solid internal part 19 acting as a valve.
• the valve 19 is slidably mounted in a cylinder 20.
• the return spring 17 is housed inside the cylinder 20, around the valve part 19 of the ejection nozzle 16, bearing against an annular flange 21 of the valve 19, of diameter substantially equal to that of an enlarged portion 20 ′ of the cylinder 20 but nevertheless very slightly smaller, for the escape of the compressed gas between the cylinder 20 and this flange 21.
• the flange 21 of the valve 19 is in abutment against an annular seal 22 housed in an annular shoulder of the portion 20 ′ of the cylinder 20.
• the external tubular part 18 of the ejection endpiece 16 has a bore 23 in this stage, with an internal annular shoulder 24, to form a female endpiece for receiving the male inlet endpiece 4 of the solenoid valve 2.
• the axial length of the receiving bore 23, between the internal shoulder 24 and the end 25 of the end piece 18 is substantially equal to the axial length of the male inlet end piece 4 of the solenoid valve 2.
• the diameter outside of the male inlet nozzle 4 is substantially equal, in fact very slightly greater, to the inside diameter of the bore portion 23 of larger diameter.
• the ends 9 of the end piece 4 abuts against the transverse annular shoulder 24 disposed perpendicular to the axis 8 of the cylindrical sealing surfaces 26, 27 and which also constitutes a surface d sealing.
• the female end piece 18 of the cartridge therefore constitutes an integrated sealing connection between the two end pieces.
• the female ejection tip 16 is pushed back into a position of gas ejection, by the male inlet nozzle 4 against the action of the return spring 17 to release the flange of the annular valve 21 of the seal 22 and allow the compressed gas to escape from the cartridge 1 in the solenoid valve 2 of the fixing device.
• the wall 26 of the bore 23 of the female end portion 18 may have an annular sealing lip 29; the narrowing of the bore 23 at this lip increases the contact between the two end pieces.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Quick-Acting Or Multi-Walled Pipe Joints (AREA)
• Filling Or Discharging Of Gas Storage Vessels (AREA)
• Portable Nailing Machines And Staplers (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8870624

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (4)

Citations (5)

• 2001
  • 2001-12-18 FR FR0116369A patent/FR2833685B1/fr not_active Expired - Fee Related
• 2002
  • 2002-12-11 EP EP02805369A patent/EP1467842B1/fr not_active Expired - Lifetime
  • 2002-12-11 WO PCT/FR2002/004286 patent/WO2003053637A1/fr active IP Right Grant
  • 2002-12-11 DE DE60225070T patent/DE60225070T2/de not_active Expired - Lifetime
  • 2002-12-11 AU AU2002366748A patent/AU2002366748A1/en not_active Abandoned
  • 2002-12-11 ES ES02805369T patent/ES2300507T3/es not_active Expired - Lifetime

Patent Citations (5)

Also Published As

Similar Documents

Legal Events